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BQ3285LD 符合 ACPI 的 RTC IC,具有 242x8 NVSRAM、警报唤醒专用 32kHz 输出和在 L 版本上以 3V 工作

BQ3285LD 描述

The CMOS BQ3285LD is a low-power microprocessor peripheral providing a time-of-day clock and 100-year calendar with alarm features and battery operation. The architecture is based on the bq3285 RTC with added features: century bit, low-voltage operation, 32.768kHz output, 126 additional bytes of CMOS, two shadow registers of last address used, and a day-of-month alarm to be compliant with the ACPI RTC specification. A 32.768kHz output is available for sustaining power-management activities. The BQ3285LD 32kHz output is always on whenever VCC is valid. In VCC standby mode, the 32kHz is active, and the BQ3285LD typically draws 100uA. Wake-up capability is provided by an alarm interrupt, which is active in battery-backup mode

BQ3285 BQ3285E BQ3285LD BQ3285LF
Supply Voltage(V) 5 5 3 3
Bus Interface Multiplexed Multiplexed Multiplexed Multiplexed
Memory Density(Kb) 0.114 0.242 0.242 0.242
Operating Temperature Range(°C) 0 to 70 0 to 70 0 to 70
Pin/Package 24PDIP, 24SOIC 24PDIP, 24SOIC, 24SSOP/QSOP 24SSOP/QSOP 24SSOP/QSOP
Approx. Price (US$) 2.10 | 1ku 2.10 | 1ku 2.10 | 1ku 2.10 | 1ku
RTC Bytes 14 14 14
BQ3285LD 特性
BQ3285LD 芯片订购指南
器件 状态 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
BQ3285LDSS ACTIVE 2.55 | 1ku SSOP/QSOP (DBQ) | 24 50 | TUBE 3285LDSS
-A2
BQ3285LDSSG4 ACTIVE 2.55 | 1ku SSOP/QSOP (DBQ) | 24 50 | TUBE 3285LDSS
-A2
BQ3285LDSSTR ACTIVE 2.10 | 1ku SSOP/QSOP (DBQ) | 24 2500 | LARGE T&R 3285LDSS
-A2
BQ3285LDSSTRG4 ACTIVE 2.10 | 1ku SSOP/QSOP (DBQ) | 24 2500 | LARGE T&R 3285LDSS
-A2
BQ3285LD 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
BQ3285LDSS Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR BQ3285LDSS BQ3285LDSS
BQ3285LDSSG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR BQ3285LDSSG4 BQ3285LDSSG4
BQ3285LDSSTR Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR BQ3285LDSSTR BQ3285LDSSTR
BQ3285LDSSTRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR BQ3285LDSSTRG4 BQ3285LDSSTRG4
BQ3285LD 应用技术支持与电子电路设计开发资源下载
  1. BQ3285LD 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器实时时钟产品选型与价格 . xls
  3. PowerPADTM Thermally Enhanced Package (PDF 1040 KB)
  4. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) (PDF 2206 KB)
  5. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  6. PowerPADTM Made Easy (PDF 57 KB)
  7. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
  8. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  9. 所选封装材料的热学和电学性质 (PDF 645 KB)
  10. 高速数据转换 (PDF 1967 KB)
BQ3285LD 相关工具
名称 型号 公司 工具/软件类型
BQ3285LD 评估模块 BQ3285LDEVM Texas Instruments 开发电路板/EVM